MP 8 engine; 233617 Miles; 11001 Hours;

Vocational application, Roll off

Horrible, very expensive noise related to engine speed, not from the trans or clutch...

not from any accessory after the belts were dropped...

Rear main seal was damp...

pull the oil pan & find dozen or so tops of timing gear teeth ...

Still under warranty by a week & half...

Off to dealer it goes....

Anyone else seeing similar failures on Macks?? or Volvos...

William La Forge
Technician
K. S. La Forge Excavating
Wellsville, New York, USA